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Official data from INPI

MÉTODO E APARELHO PARA CONTROLAR UM REFINADOR DE POLPA TERMOMECÂNICA

Arquivada/ExtintaInvention PatentPCT · FI1988000118

Application data

Number

PI8807615

Type

Invention Patent

Filing

07/15/1988

Publication

04/17/1990

PCT

FI1988000118

Progress at the INPI

  1. Filing07/15/88
  2. Publication04/17/90
  3. Examination07/16/91
  4. Allowance08/08/95
  5. Grant04/30/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. S. (pessoa física)

FI

P. P. (pessoa física)

FI

Inventors

A. S. (pessoa física)

FI

P. P. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

873120 · 07/15/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Notificação para pagamento de retribuição

#13.1

01/02/1996

RPI 1309

Deferimento

#9.1

08/08/1995

RPI 1288

Exigência - art. 36 da LPI

#6.1

07/19/1994

RPI 1233

Solicitação de exame técnico

#4.1

07/16/1991

RPI 1076

Notificação de entrada na fase nacional - PCT

#1.3

04/17/1990

RPI 1014

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